Dump-wagon.



No. 840,785. PATENTED JAN. 8, 1907. R. H. MAOGLBRNAN.

DUMP WAGON.

APPLICATION FILED APR/18.1906.

' 2 SHEETS-SEEBT 1.

No. 840,785. PATENI'ED JAN. 8, 1907.

R. H. MAOGLERNAN.

DUMP WAGON. APPLICATION FILED APR.18.1906.

2 SHEETS-SHEET 2.

a al/ WW e 0 ago Q UNITED STATES RICHARD H. MAoCLERNAN, OF WEST PHILADELPHIA, PENNSYLVANIA PATENT OFFICE.

ASSlGNOR TO CONTRACTORS WAGON COMPANY. OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

DUMP-WAGON.

Specification of Letters Patent.

Application filed April 18, 1906 Serial No. 312.304.

' Patented Jan. 8, 1907.

To all whom it may concern:

Be it known that I, RICHARD H. MAC- CLERNAN, a citizen of the United States, residing at West Philadelphia; in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Dump-Wagons, of which the following is a specification. I

My invention has relation to a dumpwagon and in such connection it relates more particularly to the construction of the wagon-box and to the arrangement of the doors forming the bottom thereof.

The principal objects of my invention are first, to so arrange the ends of the wagon-box as to permit of the ready discharge of the load carried therein; second, to so arrange the doors forming the bottom of the wagon as to permit of the overlapping of the same at the meeting ends thereof without bending one of the doors, and, third, to so arrange the chain supporting the doors in a closed position as to permit of a certain yielding of the same necessary to insure the raising of the lighter door in advance of the heavier door.

My invention consists of a dump-wagon constructively arranged for operation in substantially the manner hereinafter described and claimed.

The nature and characteristic features of my invention will be more fully understood from the following description, taken in connection with the accompanying drawings, forming part hereof, in Which Figure 1 is a view illustrating, partly in side elevation and partly in section, a dump wagon with one of the doors thereof in an open position and with downwardly-flaring ends to the bottom of the box of the Wagon and the chain for sup orting the doors in a closed position, all eiribodying main features of my said invention. Fig. 2 is a view illustrating in cross-section the agon-box, the

sides and doors constituting the bottom being of varying widths and the, doors being shown in aclosed position, but overlapping each other in a horizontal position and Fig. 3 is a view illustrating in end elevation the doors constituting the bottom of the wagonbody in a closed position and also showing in dotted outline the raising of one of,v the doors in advance of the other thereof.

Referring to the drawings, a is the dumpwagon, erched upon axles a and a ,'support ed by w eels a and a, and having a tongue a a. is the wagon-box, consisting of downwardly-flaring ends a and a and verticallyarranged sides a and a". The ends (17 and a are so arranged as to form a larger o utlet for the load than the inlet for thesaine, to thereby insure the ready discharge of the contents of the box a, and thus to prevent clogging or arching of matter in the box during discharge, which is very apt to take place when the ends are upwardly inclined or the sides and ends of the box are parallel to each other. 4

To the sides ca and a, of the box a are secured strips a terminating in hooks a", engaging channel-irons 6 secured to the doors I) and b by passing through eyes 5 therein. The strips a and irons '6 form hinges and at the same time strengthen the sides as well as doors of the wagon-box. In addition to the channel-irons b the doors are provided with channel-irons b adapted to.

receive tubing These channel-irons b and tubing f form trusses to prevent bending and buckling of the doors at their free ends. As shown in Fig. 2, the side a, is of greater width than the side a. Width is determined by the thickness of the .door I) to permit the door I), which is detachably connected with the side a, to assume a horizontal position with respect to the door 6. Thus it will be observed that the doors I) and b are permitted to overlap each other at the ends 1) without requiring a bending of one of the doors. By this arrangement the doors are permitted to assume a horizontal position in their closed condition and to form a tight joint or surface contact at the point 6 preventing thereby moist or semifluid material that the wagon may be loaded with passing between the overlapping doors in their closed conditionj If the side a of the wagon-box a be of the same width as the side a thereof, the door I), connected with side a ,in a closed position of 'both doors would assume an oblique position with respect to the door I). In such instance the end I) of the door I) would abut against the edge of the door I), thus forming a line-contact, between which soft or semifluid matter The difierence in would drain off from the wagon-box a. The door I; being of, greater width will be heavier than the door I), of slightlyless width. This difference in weight of the respective doors is utilized to insure the raising of the door I) in, advance of the door I) by means of a chain d. This chain passes over guidepulleys g and g, secured to the end a of the wagon-box a and passing then through the tubing f, secured to the respective doors I) and b, then rises through a guide a, secured to the end a of the box a, and is secured at the ends thereof to a shaft or drum 0, actuated by a lever c by means not shown. Before entering and leaving the tubing f, con nected with the doors I) and b, the chain d passes through guide-pieces f and f designed to prevent wear thereof. By this arrangement a single chain d is employed, the ends of which are rigidly secured to the shaft 0, and thus permit of a certain yielding atthe rear portion of the wagon-box a for a purpose to be presently explained. When theshaft c is turned, the ends of the chain 61 are wound thereon, thus tightening the chain and raising the doors in a well-understood manner.

The door I) being of greater width than the.

door I), and thus of greater weight, will offer greater resistance in the raising of thesame by the chain d than the door I). Hence the door '6 being of less weight, will be raised by the chain d in advance of the door I), thus insuring a proper closing of both of the doors without the assistance of any specially-designed mechanism therefor. The door I), being heavier than the door Z), will assist in the raising of the same due to the difference in weight. doors I) and b in the present instance is facilitated by the yielding of the chain d under the greater weight of the door I) to close the lighter door I) in advance of the heavier door I), so as to properly overlap each other in their closed position, as clearly shown in Fig. 3 of the drawings.

The accomplishment of the above result is due to the fact that the chain (Z is fastened at its ends to the shaft or drum 0, while at the rear end of the wagon the chain travels loosely over the pulleys g and g, which permits of a slip or yielding of the chain thereby in the raising of the doors I) and b of the box of the wagon a.

' Where a different arrangement of the chain d or more than one chain is employed to support the doors I) and b, the closing of the door I) in advance of the door I) will be accomplished unassisted by the yielding of However, this raising of the the chain (1, due to the location of the door b above the door I), whichby having a lesser distance to travel will reach its normally operative position in advance of the door I).

Having thus described the nature and objects of my invention, what I claim as new, and desire to secure by Letters Patent, is 1. In a dump-wagon, a box having straight sides and downwardly-inclined ends forming I an outlet of greater size than the inlet thereof to prevent material to be dumped arching between the ends of said box, said box provided with pivotal doors forming the bottom of said box and occupying when closed a position at different elevations with respect to each other and means'for raising and lowering said doors.

2. In a dump-wagon, a box having sides.

of different widths, doors of different widths pivotally secured to said sides and adapted to be held by the same in varying elevations, the side of greater width adapted to hold the door connected therewith below the door connected with the opposite side of said box to permit the respective doors to assume horizontal positions.

3. In a dump-wagon, a box having sides of different widths and downwardly-inclined ends, doors of different widths pivotally secured to said sides, the side of greater width adapted to be connected with the door of greater width to permit the same to assume a horizontal position with respect to the door of lesser width and to overlap the same;

4. In a dump-wagon, a box having sides of different widths, and downwardly-inclined ends, doors of different widths and weights connected with said sides, the side of greater width adapted to support the door of greater weight, a chain. for supporting said doors in one of their positions and said chains adapted to permit of the raising of one of the doors in advance of the other.

5. In a dump-wagon, a box having sides of different widths and downwardly-inclined ends, doors of different widths and weights connected with said sides, the side of greater width adapted to support the door of greater weight, a chain. for supporting said doors in one of their positions and said chains adapted'to permit of the raising of one of the doors in advance of the other, so as to overlap.

In witness whereof I have hereunto set my signature in the presence of two subscribing witnesses.

RICHARD H. MAOCLERNAN.

IVitnesses:

J. WALTER DoNeLAss, THOMAS MI SMITH. 

